Base | Representation |
---|---|
bin | 11100111110011011… |
… | …010011000000011101 |
3 | 2222022020221011021010 |
4 | 130332123103000131 |
5 | 1002204200123310 |
6 | 22143120325433 |
7 | 2150662415214 |
oct | 347633230035 |
9 | 88266834233 |
10 | 31112114205 |
11 | 12215a82987 |
12 | 6043473879 |
13 | 2c1a8c7a43 |
14 | 171201c07b |
15 | c215a4320 |
hex | 73e6d301d |
31112114205 has 64 divisors (see below), whose sum is σ = 55906329600. Its totient is φ = 14681871360.
The previous prime is 31112114203. The next prime is 31112114227. The reversal of 31112114205 is 50241121113.
It is not a de Polignac number, because 31112114205 - 21 = 31112114203 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31112114203) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 610186 + ... + 659204.
It is an arithmetic number, because the mean of its divisors is an integer number (873536400).
Almost surely, 231112114205 is an apocalyptic number.
It is an amenable number.
31112114205 is a deficient number, since it is larger than the sum of its proper divisors (24794215395).
31112114205 is a wasteful number, since it uses less digits than its factorization.
31112114205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 49194.
The product of its (nonzero) digits is 240, while the sum is 21.
Adding to 31112114205 its reverse (50241121113), we get a palindrome (81353235318).
The spelling of 31112114205 in words is "thirty-one billion, one hundred twelve million, one hundred fourteen thousand, two hundred five".
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